simIncludeRW¶
- class simIncludeRW.rwFactory[source]¶
Bases:
objectReaction Wheel Factory Class
- BCT_RWP015(RW)[source]¶
BCT RWP015
RW Information Source: https://storage.googleapis.com/blue-canyon-tech-news/1/2019/10/BCT_DataSheet_Components_ReactionWheels_F2.pdf
Not complete; fields not listed are estimates.
- Parameters
RW – reaction wheel configuration message
- Returns
- addToSpacecraft(modelTag, rwStateEffector, sc)[source]¶
This function should be called after all RW devices are created with createRW() It creates the C-class container for the array of RW devices, and attaches this container to the spacecraft object
:param : :type : param modelTag: string with the model tag :param : :type : param rwStateEffector: :param : :type : param sc: spacecraft object
- create(rwType, gsHat_B, **kwargs)[source]¶
This function is called to setup a RW device in python, and adds it to the RW factory list rwList{}. The function returns a copy of the device that can be changed if needed. The first 2 arguments are required, the remaining arguments are optional with:
- Parameters
rwType (string) – RW manufacturing name.
gsHat_B (list) – Spin axis unit vector gsHat in B-frame components
kwargs –
- Omega: float
initial RW speed in RPM
- Omega_max: float
maximum RW speed in RPM
- rWB_B: list
3x1 list of RW center of mass position coordinates
- RWModel: integer
RW model type such as BalancedWheels, JitterSimple and JitterFullyCoupled
- useRWfriction: BOOL
conditional to turn on RW internal wheel friction
- useMinTorque: BOOL
conditional to clip any torque below a minimum torque value
- useMaxTorque: BOOL
conditional to clip any torque value above a maximum torque value
- u_max: float
the maximum RW motor torque
- maxMomentum: float
maximum RW wheel momentum in Nms. This is a required variable for some wheels.
- P_max: float
the maximum allowed wheel power for changing wheel speed (does not include a base power requirement)
- label: string
with the unique device name, must be 5 characters or less
- fCoulomb: float
Coulomb friction torque model coefficient
- fStatic: float
Static friction torque magnitude
- betaStatic: float
Stribeck friction coefficient, positive turns Stribeck friction on, negative turns this friction off
- cViscous: float
Viscous friction coefficient
- Js: float
RW inertia about spin axis
- Returns
RWConfigSimMsg – A handle to the RW configuration message
- Return type
message structure
- custom(RW)[source]¶
Creates an empty reaction wheel configuration message. This assumes the user provided the RW maximum speed and maximum angular momentum information so that Js can be computed, or the user provides the Js inertia value directly.
- Parameters
RW – reaction wheel configuration message
- Returns